davandg

I think that Linus is too heavy for a very cheap "CPU". If by Linux you mean "something easy to develop on", then most micro-controllers come nowadays with an Arduino compatible layer.

If you remove the Linux part from your wishlist, you can consider some "NodeMCU" boards on Chinese websites, eg: https://www.banggood.com/Wemos-NODEMCU-ESP8266-12F-WiFi-1_30... https://www.banggood.com/Wemos-TTGO-WiFi-Bluetooth-Battery-E...